Plural Feed Means Extending To Common Wall Opening Of Furnace Patents (Class 431/181)
  • Patent number: 10443852
    Abstract: A lobe lance is disclosed for a gas turbine combustor which includes a plurality of N (N?4) lobe fingers, each configured as a streamlined body with two lateral surfaces. A plurality of nozzles for injecting a gaseous and/or liquid fuel mixed with air are provided whereby lobes running between the nozzles are provided for improving the mixing quality and reducing pressure loss in said combustor. The lobes of each lobe finger have one of two opposite orientations with respect to said flow direction, and the lobes of all lobe fingers follow a predetermined pattern of orientation across the lobe fingers at least one pair of neighboring lobe fingers has the same lobe orientation resulting in a grouped lobe arrangement ( . . . LL . . . or . . . RR . . . ) such that at least two of the vortices generated by the lobe shape downstream of the lobe fingers combine.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 15, 2019
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Yang Yang, Michael Düsing
  • Patent number: 9966820
    Abstract: A method of maintaining a high voltage bushing can comprise inspecting a high voltage bushing connection, the high voltage bushing connection comprising a tubular lead, a lower stud connector, and the high voltage bushing. A method of maintaining a high voltage bushing can also comprise restoring the high voltage bushing connection, which can further comprise applying conductive material to at least one of a mating portion of a tubular lead and a mating portion of a high voltage bushing, machining an outside diameter of at least one of the mating portion or the tubular lead and the mating portion of the high voltage bushing to a predetermined outer diameter, and machining a mating portion of a lower stud connector to a predetermined inner diameter. A high voltage bushing connection can comprise a restored mating portion of a tubular connector and a restored lower stud connector.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 8, 2018
    Assignee: AGT Services, Inc.
    Inventors: Vincent Rigosu, Jr., Michael Bresney, Nick Rebich, Charles Marino, Randy Snyder
  • Patent number: 9249477
    Abstract: This disclosure concerns the recovery of PGM (platinum group metals) from spent homogeneous catalysts present in an organic phase. Specifically, a pyrometallurgical process is provided whereby the PGM, and Rh in particular, are concentrated in a metallurgical phases, rendering them accessible for refining according to known processes. To this end, a process is disclosed comprising the steps of: —providing a molten bath furnace, having a submerged injector equipped for liquid fuel firing; —providing a molten bath comprising a metallic and/or matte phase, and a slag phase; —feeding the spent homogeneous catalyst and an O2 bearing gas through the injector, a major part of the PGM being recovered in the metallic and/or matte phase; —separating the PGM-bearing metallic and/or matte phase from the slag phase. The energy content of the organic waste can be effectively used for heating and/or reduction of the metallurgical charge in the furnace.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: February 2, 2016
    Assignee: Umicore
    Inventors: Wim Dobbelaere, Dirk Crauwels
  • Patent number: 9039407
    Abstract: The burner preferably exclusively burns substantially explosible solid fuels and preferably has instant ON-OFF thermostat control, wastes no energy preheating the enclosure or external air supply, achieves stable combustion the moment the powder-air mix is ignited in our burner, is used in the upward vertical mode except for oil burner retrofits, burns a solid fuel in a single-phase regime as if it were a vaporized liquid or gas, is designed to complete combustion within the burner housing itself rather than in a large, high temperature furnace enclosure which it feeds, has an ultra-short residence time requirement, is a recycle consuming burner with self-contained management of initially unburned particles, is much smaller, simpler and lower cost, has a wider dynamic range/turndown ratio, is more efficient in combustion completeness and thermal efficiency, and operates with air-fuel mix approximately at the flame speed.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: May 26, 2015
    Inventors: James K. McKnight, Edward Bacorn, Ken W. White
  • Publication number: 20150132703
    Abstract: In various implementations, a burner may include two venturi inlets coupled to one or more burner heads. The venturi inlets may be opposingly disposed. During use, fuel may be provided to the burner via the two venturi inlets and at least partially combusted proximate the burner heads.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: Lennox Industries Inc.
    Inventors: Shiblee Noman, Ian Burmania
  • Publication number: 20150128926
    Abstract: In various implementations, a multi-burner head assembly may include a venturi inlet coupled to burner heads. The multi-burner head assembly may allow control of the flame profile generated by the assembly. For example, burner heads of the multi-burner head assembly may include different characteristics, such as height.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: Lennox Industries Inc.
    Inventors: Shiblee Noman, Ian Burmania
  • Publication number: 20150133709
    Abstract: A burner assembly for and method of producing ethylene having a mechanism to inject either primary fuel, staged fuel, or both by premix methods before combustion in a furnace. The burner assembly has at least one premix injection assembly for either exclusively primary fuel or exclusively staged fuel injection paired with a nozzle mix injection or injection means for primary and staged fuel both by premix methods. The primary fuel premix assembly associates with a burner tile that consists of multiple inlets and outlets connected by venturi channels to direct and combine combustion air and staged fuel coming from staged fuel orifice spuds. Primary fuel and combustion air are mixed in a premix assembly and directed inside the furnace, and above the burner tile to complete the reaction with the staged fuel and combustion air mixture in a combustion zone inside of the furnace.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: UOP LLC
    Inventor: Richard Ray Martin
  • Publication number: 20150099233
    Abstract: A combustion system comprises a combustion chamber and a flue gas duct located downstream of the combustion chamber to receive combustion products from the combustion chamber, the combustion chamber has a base and an enclosing wall connecting the base to the flue gas duct. The combustion chamber is provided with a plurality of combustion devices, the combustion devices being configured to deliver fuel and gas and/or air into the combustion chamber so as to generate a fireball within a combustion zone in the combustion chamber, the combustion devices further being configured such that the generated fireball rotates about an axis extending between the base and the flue duct. A secondary gas and/or air nozzle is provided in the base of the combustion chamber, at a location upstream of the combustion zone, the nozzle being for delivering gas and/or air into the combustion zone in a direction towards the flue duct.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 9, 2015
    Inventors: John GOLDRING, Steven BILLETT, Lawrence BERG
  • Publication number: 20150086931
    Abstract: The purpose of the present invention is to provide a combustion device for improving a turndown ratio, which is capable of stably implementing a combusted state in a low-output load region by improving a turndown ratio of a burner. To this end, the present invention provides the combustion device having a premixing chamber (300) which is connected to an air supply tube (100) and a gas supply tube (200), and which has a space for premixing air and gas provided therein, wherein the space for premixing the air and gas supplied from the air supply tube (100) and the gas supply tube (200) is divided into multiple stages of a venturi structure in the premixing chamber (300), and the discharging direction of the gas discharged inside the premixing chamber (300) through the gas supply tube (200) is formed in parallel to the flow direction of the gas supplied inside the premixing chamber (300) through the air supply tube (100).
    Type: Application
    Filed: April 15, 2013
    Publication date: March 26, 2015
    Applicant: KYUNGDONG NAVIEN CO., LTD.
    Inventors: Hyoung Rae Kim, Seung Kil Son
  • Publication number: 20150072294
    Abstract: A gaseous fuel-oxygen burner is described herein. One device includes a flame zone in which combustion of gaseous fuel and oxygen occurs to form a flame, a coaxial gaseous fuel jet configured to provide the flame zone with gaseous fuel, and a coaxial oxygen jet configured to provide the flame zone with oxygen, wherein the coaxial gaseous fuel jet and the coaxial oxygen jet are separate such that the gaseous fuel from the coaxial gaseous fuel jet and the oxygen from the coaxial oxygen jet do not mix before entering the flame zone.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: Honeywell International Inc.
    Inventors: Curtis Taylor, Christopher S. Eldridge, Brad Patterson, Jayson Perdue, William R. Berkenbush
  • Publication number: 20150068437
    Abstract: A burner has a fuel/oxidant nozzles and a pair of dynamical lances spaced on either side thereof that inject a jet of fuel and primary oxidant along a fuel injection axis, and jets of secondary oxidant, respectively. Jets of actuating fluid impinge against the jets of secondary oxidant to fluidically angle the jets of secondary oxidant away from the fuel injection axis. The action of the angling away together with staging of the oxidant between primary and secondary oxidant injections allows achievement of distributed combustion conditions.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 12, 2015
    Inventors: Taekyu KANG, Vivek GAUTAM, Rajeev S. PRABHAKAR, Benoit GRAND, Bertrand LEROUX, Magnus MORTBERG, Nicolas DOCQUIER
  • Patent number: 8974226
    Abstract: The present invention relates to a method for operating combustion process in a furnace whereby a primary fuel and a secondary fuel are burnt, to an apparatus for injecting liquid oxygen into the furnace and also to the corresponding furnace. The method comprises at least the following steps: the primary fuel and a primary oxidizer are injected into the furnace to create a primary combustion zone, liquid oxygen is injected in as secondary oxidizer such that the secondary fuel combusts with the secondary oxidizer thereby creating a distinct secondary combustion zone. The invention makes it possible for a secondary fuel having a significantly lower calorific value than the primary fuel to be burnt completely in the furnace, such that a product to be produced in the furnace has an improved quality.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 10, 2015
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Frank Rheker
  • Publication number: 20150040579
    Abstract: A system for supporting bundled tube segments within a combustor includes an annular sleeve that extends circumferentially and axially within the combustor, a support lug that extends radially inward from the annular sleeve and an annular support frame that is disposed within the annular sleeve. The annular support frame includes an inner ring portion, an outer ring portion and a plurality of spokes that extend radially between the inner and outer ring portions. The inner ring portion, the outer ring portion and the plurality of spokes define an annular array of openings for receiving a respective bundled tube segment. The inner ring portion is connected to each bundled tube segment and the outer ring portion is coupled to the support lug.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 12, 2015
    Applicant: General Electric Company
    Inventor: Patrick Benedict Melton
  • Publication number: 20150000572
    Abstract: A precombustor system (300) including an ignition chamber (301) having a front wall (308), a central axis, a diameter Dic, and an outlet (313) configured to discharge a product gas (315). The ignition chamber (301) includes a central ignition oxygen injector (307) configured to inject a first oxygen stream from the front wall (308) substantially parallel to the central axis, and a tangential primary fuel injector (303) configured to inject a primary fuel stream tangential to the central axis at a location an axial distance Xpf downstream of the front wall (308). The ratio Xpf/Dic is from 0.25 to 4.0. The central axis forms an angle a with a vertical line of less than or equal to about 45 degrees. The trajectory of the primary fuel stream forms an angle ? with a plane that is perpendicular to the central axis of less than or equal to about 20 degrees. A method for combustion is also disclosed.
    Type: Application
    Filed: November 7, 2012
    Publication date: January 1, 2015
    Inventors: Mark Daniel D'Agostini, Aleksandar Georgi Slavejkov, Stephane Bernard Poussou, Xiaoyi He, Francis Anthony Milcetich
  • Patent number: 8920159
    Abstract: An apparatus is provided for combining oxygen and fuel to produce a mixture to be burned in a burner. The oxygen-fuel mixture is ignited in a fuel-ignition zone in a flame chamber to produce a flame.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: December 30, 2014
    Assignee: Honeywell International Inc.
    Inventor: Curtis Taylor
  • Patent number: 8899970
    Abstract: Burner device (2) for an industrial furnace (1) comprising a channel (3) for fuel, a channel (4) for a first oxidant, an outlet (9) for flue gases, a control device (10) and a heat buffer (7), where the first oxidant and the flue gases alternatingly are led through the heat buffer (7). The invention is characterized in that a separate lancing device (6) is arranged to supply a second oxidant to the burner device (2).
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: December 2, 2014
    Assignee: AGA AB
    Inventors: Tomas Ekman, Anders Lugnet
  • Publication number: 20140308620
    Abstract: The present invention relates to a pulverized coal fired boiler with wall-attachment secondary air and grid overfire air. Primary burners including primary air spouts, secondary air spouts and close coupled overfire air spouts arranged at intervals along the height direction of a hearth are arranged on four corners of the hearth. Two-way wall-attachment secondary air spouts and one-way wall-attachment secondary air spouts are arranged from bottom to top in a primary combustion zone where the primary burners are located. One-way wall-attachment secondary air spouts are arranged in a reduction zone between the primary burners and the top overfire air spouts, and grid overfire air spouts are arranged in a burnout zone where the overfire air is supplied.
    Type: Application
    Filed: January 15, 2013
    Publication date: October 16, 2014
    Applicant: YANTAI LONGYUAN POWER TECHNOLOGY CO., LTD.
    Inventors: Yuankai Deng, Yonghe Zhang, Ming Li, Bo Hou, Jinlei Cui, Tanrong Wei, Weiguo Rong, Lei Li, Guofeng Xu
  • Publication number: 20140272736
    Abstract: A low NOx combustion method includes steps of injecting reactants into a combustion chamber. A primary reactant stream, including fuel and combustion air premix, is injected from a premix burner port into the combustion chamber. A staged fuel stream is injected into the combustion chamber from a staged fuel injector port adjacent to the premix burner port. A stream of recirculated flue gas is injected into the combustion chamber from a flue gas injector port that is adjacent to the premix burner port and adjacent to the staged fuel injector port. In this manner, the stream of recirculated flue gas is injected into the combustion chamber unmixed with the primary reactant stream and unmixed with the staged fuel stream.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Thomas F. Robertson, Bruce E. Cain, John J. Nowakowski, Mark C. Hannum
  • Patent number: 8827691
    Abstract: During a heating phase, injection of a jet of fuel and oxidant (fuel annularly enshrouding oxidant or oxidant annularly enshrouding fuel) from a fuel-oxidant nozzle is combusted in a combustion space. During a transition from the heating phase to a distributed combustion phase, an amount of a secondary portion of either the fuel or oxidant is injected as a jet into the combustion space while the primary portion of that same reactant from the fuel-oxidant nozzle is decreased. At some point during the transition phase, a jet of actuating fluid is injected at an angle towards the jet of reactants from the fuel-oxidant nozzle and/or towards the jet of the secondary portion of reactant. The jet of primary portions of reactants and/or secondary portion of reactant is caused to be bent/deviated towards the other of the two jets. The staging of the secondary portion of reactant is increased until a desired degrees of staging and commencement of a distributed combustion phase are achieved.
    Type: Grant
    Filed: July 31, 2010
    Date of Patent: September 9, 2014
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air Liquide, Inc.
    Inventors: Rajeev S. Prabhakar, Remi Pierre Tsiava, Magnus Mortberg, Benoit Grand, Bertrand Leroux, Vivek Gautam
  • Publication number: 20140242527
    Abstract: Embodiments of this invention relate generally to furnaces, particularly to furnaces with combustors utilizing fuel and oxidizer jets, more particularly to furnaces used for glass production, and further to glass container production. In one embodiment, a furnace comprises first and second opposing walls, the first wall including a fuel nozzle having a fuel nozzle centerline extending toward the second wall, and an oxidizer nozzle having an oxidizer nozzle centerline extending toward the second wall and an oxidizer jet boundary. The first and second opposing walls are separated by a wall separation distance L. In this embodiment, the fuel nozzle centerline intersects the oxidizer jet boundary at a crossing distance xc, whereby xc is at least L/20 and at most L/2. In further embodiments, xc is at least L/9 and at most L/6.
    Type: Application
    Filed: October 3, 2012
    Publication date: August 28, 2014
    Inventors: David Galley, Nicolas Enjalbert, Thierry Barriant
  • Publication number: 20140227648
    Abstract: A device for stabilizing dilute combustion for use in a cold-walls type combustion chamber comprises a burner. The burner comprises at least one oxidant inlet and at least one fuel inlet. The oxidant and fuel inlets opening separately into the chamber at a distance suitable for establishing combustion which is highly diluted by internal re-circulations of combustion products toward a burner zone. The device comprises a heating element configured to heat, during steady operating conditions, the combustion products to sustain self-ignition conditions. The heating element is positioned in a dilution zone and surrounds a set of oxidant and fuel jets.
    Type: Application
    Filed: August 13, 2012
    Publication date: August 14, 2014
    Applicant: GDF SUEZ
    Inventors: Alain Quinqueneau, Clotilde Villermaux, Mathieu Ourliac, Mechline Ayoub, David Honore
  • Publication number: 20140182491
    Abstract: Improved combustion of biomass is achieved by injected first and second streams of biomass from a burner where the first stream of biomass has a median particle size larger than the biomass of the second stream and oxygen is injected with the first stream to provide an oxygen-enriched environment around the larger median sized particles. The oxygen-enriched environment is achieved either by injecting the oxygen directly into the first stream or by premixing the oxygen with the conveying air of the first stream.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: Air Liquide, Societe Anonyme pour Etude et Exploitation des Procedes Gorges Claude
    Inventor: Air Liquide, Societe Anonyme pour Etude et Exploitation des Procedes Georges Claude
  • Patent number: 8763399
    Abstract: A combustor includes a fueling nozzle that jets a fuel towards a combustion chamber located downstream and a flat-plate-shaped air blowhole plate that faces the upstream side of the combustion chamber and that is disposed between the fueling nozzle and the combustion chamber. The air blowhole plate has a plurality of air blowholes arranged at equal intervals in a circumferential direction relative to the center of the air blowhole plate, in order to jet a flow of fuel and a flow of air that is formed at the outer circumferential side of the fuel flow toward the combustion chamber.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 1, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Dodo, Hiromi Koizumi, Keisuke Miura, Hirokazu Takahashi
  • Publication number: 20140170573
    Abstract: A method of providing oxygen enriched fuel into a combustion atmosphere of a furnace includes injecting a fuel stream into the combustion atmosphere, and providing oxygen into the fuel stream during the injecting of the fuel stream into the combustion atmosphere. A fluid injection apparatus for a combustion atmosphere of a furnace is also provided and includes a housing having a space therein and a discharge orifice in communication with the space, a lance for oxygen disposed in the space and in communication with the discharge orifice, and an inlet duct for a fuel stream in communication with the space external to the lance.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 19, 2014
    Inventor: Neil G. SIMPSON
  • Publication number: 20140154633
    Abstract: The invention relates to a method for oxidising hydrogen, comprising mixing hydrogen, oxygen and at least one third component, and subsequently reacting hydrogen and oxygen. The invention is characterized in that the at least one third component is carbon dioxide, wherein the method further comprises the step of dividing at least part of said carbon dioxide into CO and 0 radical for controlling the reaction temperature. The invention further relates to a device for oxidising hydrogen gas.
    Type: Application
    Filed: March 5, 2012
    Publication date: June 5, 2014
    Inventor: René Albert Hendrik Bruins
  • Publication number: 20140127089
    Abstract: Gasifier preheater fuel and moderator injection apparatus, systems and methods are provided. A preheater distributor ring is securely mounted within the shell dome of a gasification vessel, for the selective discharge of preheat fuel and oxidizer into the vessel during preheating operations, or for the selective discharge of moderating agents into the vessel during normal gasification operations.
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: John Caleb Wilson, Jennifer Lucia Ramirez, James Scott Kain, Shaoping Shi, Dinh-Cuong Vuong, Edward Pan
  • Patent number: 8714969
    Abstract: The invention relates to a fuel combustion method in which one jet of fuel and at least two jets of oxidant are injected. According to the invention, the first jet of oxidant, known as the primary oxidant jet, is injected such as to be in contact with the jet of fuel and to produce a first incomplete combustion, the gases produced by said first combustion comprising at least one part of the fuel, and the second jet of oxidant is injected at a distance from the jet of fuel such as to combust with the part of the fuel present in the gases produced by the first combustion. Moreover, the primary oxidant jet is divided into two primary jets, namely: a first primary oxidant jet, known as the central jet, which is injected at the centre of the jet of fuel; and a second primary oxidant jet, knows as the sheathing jet, which is injected coaxially around the fuel jet.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: May 6, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Bertrand Leroux, Remi Pierre Tsiava
  • Publication number: 20140102341
    Abstract: A high efficiency laminar flow burner system for proving a stream of heat energy including a supply input module for providing fuel and laminar streams of air to a combustion manifold. The laminar air delivery system includes a damper, a blower, and an air delivery controller. The air delivery controller receives an efficiency signal to control the flow of a laminar air intake stream by adjusting the damper. The combustion manifold includes an air-fuel mixing system, a stoichiometric unit, and a refractory unit each coupled to one another. The laminar air intake stream traveling from the supply input module passes through a stoichiometric unit body to meet with a first combustion stream from an air-fuel mixing chamber within the stoichiometric unit body to define a second combustion stream. The second combustion stream then travels across the refractory passageway to define a third combustion stream.
    Type: Application
    Filed: December 25, 2013
    Publication date: April 17, 2014
    Applicant: Resource Rex, LLC
    Inventors: Teodoro A. Cantú, Ulric Teodoro Alejandro Cantú, Ervin Eluid Torres
  • Publication number: 20140106285
    Abstract: A high efficiency laminar flow burner system for proving a stream of heat energy including a supply input module for providing fuel and laminar streams of air to a combustion manifold. The combustion manifold includes an air-fuel mixing system, a stoichiometric unit, and a refractory unit each coupled to one another. A first combustion stream is established at the air-fuel mixing chamber system as fuel exits an injector device at direction perpendicular to the laminar air intake stream. A laminar air intake stream traveling from the supply input module and along the staging passageway passes through a stoichiometric unit body at a plurality of air intakes to meet with the first combustion stream within to define a second combustion stream for introduction from the stoichiometric unit to the refractory unit. The refractory unit thus defines a third combustion stream as the second combustion stream travels across a refractory passageway.
    Type: Application
    Filed: November 2, 2013
    Publication date: April 17, 2014
    Applicant: Resource Rex, LLC
    Inventors: Teodoro A Cantú, Ulric Teodoro Alejandro Cantú, Ervin Eluid Torres
  • Publication number: 20140076212
    Abstract: An apparatus for treating a combustion product stream includes a burner assembly configured to support one or more flames, the burner assembly having at least a portion configured to be driven to or held at one or more first voltages. A collection surface is held at a voltage different than the one or more first voltages to attract particulates charged by the burner assembly.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 20, 2014
    Applicant: ClearSign Combustion Corporation
    Inventors: David B. Goodson, Tracy A. Prevo
  • Patent number: 8672674
    Abstract: A burner (1) for burning a gaseous oxidant with a gaseous fuel, with a combustion chamber (2), in which the combustion reaction takes place during the operation of the burner (2), has a wall structure (4) which defines the combustion chamber (2) on the inlet side and which has oxidant openings (5) for introducing the oxidant into the combustion chamber (2) and fuel openings (6), which are separate therefrom, for introducing the fuel into the combustion chamber (2). The wall structure (4) has an oxidant distributor space (7), which is fluidically connected with the oxidant openings (5) on the outlet side and is fluidically connected with at least one oxidant feed opening (9) on the inlet side, as well as contains a fuel distributor space (8), which is fluidically separated from the oxidant distributor space (7) and is fluidically connected on the outlet side with the fuel openings (6) and is fluidically connected with at least one fuel feed opening (10) on the inlet side.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: March 18, 2014
    Assignee: Eberspächer Climate Control Systems GmbH & Co. KG
    Inventors: Andreas Kaupert, Markus Münzner, Jörg vom Schloss
  • Publication number: 20140065561
    Abstract: A tangentially-fired furnace for the burning of anthracite is disclosed. The furnace may contain a boiler with a chamber having four corners. Four burner groups located at the four corners may be configured to eject pulverized coal flow into the chamber for combustion, in order to form a single fireball substantially at the center of the chamber during combustion. Each burner group may contain a first burner which includes primary-air/rich-portion nozzles for ejecting rich-portion coal flow into a lower section of the chamber, and a second burner which includes primary-air/thin-portion nozzles for ejecting thin-portion coal flow into a higher section of the chamber.
    Type: Application
    Filed: March 17, 2013
    Publication date: March 6, 2014
    Inventors: Jianwen Zhang, Fei Chen, Gongquan Liu, Xiang Zhang
  • Patent number: 8647112
    Abstract: A combustor assembly of a water heater, which is provided between an air blower and a burner set to guide air from the air blower to the burner set, includes a first board, a second board and a third board stacked in sequence. Between the first board and the second board there is a first chamber and a first port, and between the second board and the first board there is a second chamber and a second port. The second board and the third board both have apertures. These boards restrict and divide an air flow of the air blower to flow along several paths to increase heat efficiency.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: February 11, 2014
    Assignee: Grano Mate Co., Ltd.
    Inventors: Chung-Chin Huang, Chin-Ying Huang, Hsin-Ming Huang, Hsing-Hsiung Huang, Kuan-Chou Lin
  • Publication number: 20140017619
    Abstract: The present invention relates to a method for operating combustion process in a furnace whereby a primary fuel and a secondary fuel are burnt, to an apparatus for injecting liquid oxygen into the furnace and also to the corresponding furnace. The method comprises at least the following steps: the primary fuel and a primary oxidizer are injected into the furnace to create a primary combustion zone, liquid oxygen is injected in as secondary oxidizer such that the secondary fuel combusts with the secondary oxidizer thereby creating a distinct secondary combustion zone. The invention makes it possible for a secondary fuel having a significantly lower calorific value than the primary fuel to be burnt completely in the furnace, such that a product to be produced in the furnace has an improved quality.
    Type: Application
    Filed: March 27, 2012
    Publication date: January 16, 2014
    Applicant: L'Air Liquide Societe Anonyme pour l'Etude et l'Etude et Exploitation des Procedes Georges
    Inventor: Frank Rheker
  • Publication number: 20130309618
    Abstract: A laminar flow jet for a surface mix gas burner that provides increased stability, adjustability, and control over flame chemistries and characteristics. The present invention utilizes a novel shape, typically created by a tube having a cross-sectional shape and inserting it into a faceplate cutout, or conduit, having another cross-sectional shape. This nesting of one shape inside another promotes laminar gas flow and produces desired effects. Tubes may also be placed under the faceplate provided they maintain fluid communication with the conduits. Further, a burner is constructed with adjacent gas delivery tubes of different cross-sectional shapes which are mechanically held in place radially. The tubes touch in a longitudinal direction at points along their respective inner and outer dimensions, achieving axial alignment and preserving the necessary laminar gas flow.
    Type: Application
    Filed: July 26, 2013
    Publication date: November 21, 2013
    Inventors: Wallace Horn, William Horn
  • Patent number: 8573965
    Abstract: A method of operating a pyrolysis heater for reduced emissions of NOx and carbon monoxide. One or more wall burners, typically premix burners, are operated with more excess oxidant gas than one or more of the floor or hearth burners, which are typically non-premix burners. The invention takes advantage of different NOx emissions characteristics from different types of burners.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: November 5, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Reed Jacob Hendershot, Xianming Jimmy Li, Aleksandar Georgi Slavejkov
  • Publication number: 20130244187
    Abstract: A high efficiency low NOx emission thermal oxidizer burner apparatus. The apparatus includes a plenum chamber having an inlet for introduction of combustion air and includes a combustion chamber in fluid communication with the plenum chamber. A primary waste gas pipe terminates in a lobed tip nozzle through the plenum chamber for introduction of waste gas into the combustion chamber. A primary fuel gas line is in communication with the plenum chamber for introduction of primary fuel gas.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 19, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Kurt Kraus, Matthew Martin, Stefano Bietto
  • Publication number: 20130239857
    Abstract: The disclosure relates to a waste gas purification apparatus, and more particularly, to a waste gas combustion apparatus to burn and process waste gases. The disclosure provides the waste gas combustion apparatus to process the waste gases generated in an industrial process, such as a chemical process, a semiconductor manufacturing process, or an LCD manufacturing process. The waste gas combustion apparatus includes a combustion gas supply unit provided with a first combustion region in which the waste gases are primarily burned by supply of fuel gases which are pre-mixed with diluted fuel gases, and a second combustion region which is supplied with support gases so as to completely burn fuel gases which are not reacted in the first combustion region.
    Type: Application
    Filed: October 29, 2012
    Publication date: September 19, 2013
    Applicant: GLOBAL STANDARD TECHNOLOGY CO., LTD
    Inventors: Jong-Chul KIM, Jong-Kook CHUNG, Sung-Wook LEE, Sun-Ho KIM, Won-Ki KIM, Wan-Gi ROH
  • Patent number: 8506287
    Abstract: An apparatus and process is provided for combining fuel and combustion air to produce a mixture. The mixture is burned in a combustion chamber to produce a flame.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 13, 2013
    Assignee: Honeywell International Inc.
    Inventors: Douglas M. Perry, Jeffrey T. Rafter
  • Patent number: 8449288
    Abstract: A method for reducing NOx formation, including the steps of: providing a furnace with a plurality of secondary air injection ducts, asymmetrically positioned in an opposing manner; injecting fuel with primary air through a first stage prior to injection of a second air; injecting secondary air and aqueous urea solution through the plurality of reagent injection ducts; controlling the asymmetrical injection to produce a high velocity mass flow and a turbulence resulting in dispersion of the urea solution into the combustion space, thereby providing reduced NOx formation in the combustion process.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: May 28, 2013
    Assignee: Nalco Mobotec, Inc.
    Inventor: Brian S. Higgins
  • Patent number: 8429914
    Abstract: A fuel injection system is provided for a gas turbine, comprising a mains airblast fuel injector having an annular shape, and inner and outer mains swirlers for swirling air past the mains airblast fuel injector. The inner and outer mains swirlers are concentric with the mains airblast fuel injector and are located radially inwardly and radially outwardly of the mains airblast fuel injector, respectively. The mains airblast fuel injector and the inner and outer mains swirlers are so arranged as to produce a fuel spray stream which expands from the mains airblast fuel injector and has a double flame front. The double flame front comprises flame fronts on both the radially inner and radially outer surfaces of the fuel spray stream.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: April 30, 2013
    Assignee: Rolls-Royce PLC
    Inventors: Sara Gashi, Nickolaos Pilatis
  • Patent number: 8425223
    Abstract: An apparatus, a system and a method by which fuel gas to drive a heat source is heated are provided. The apparatus includes a first gas passage by which at least a portion of the fuel gas is transported from an inlet to an outlet, the outlet being fluidly coupled to the heat source, a plurality of heat pipes in thermal communication, at respective first ends thereof, with the portion of the fuel gas transported by the first gas passage, and a heating element, fluidly coupled to the heat source to receive exhaust of the heat source, through which respective second ends of the heat pipes extend to be in position to be heated by the exhaust.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: April 23, 2013
    Assignee: General Electric Company
    Inventors: Hua Zhang, Jatila Ranasinghe, Dean Matthew Erickson
  • Patent number: 8419420
    Abstract: A burner includes a first fuel feed and a first oxidant feed surrounding the first fuel feed in the shape of a ring. The burner includes a second fuel feed arranged about the first oxidant feed in the shape of a ring, and a second oxidant feed arranged about the second fuel feed in the shape of a ring. In addition, a plurality of oxygen lances are provided, which have a smaller radial distance from the burner centre than the second fuel feed.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: April 16, 2013
    Assignee: Linde Aktiengesellschaft
    Inventor: Thomas Niehoff
  • Patent number: 8402768
    Abstract: The disclosure relates to a burner for a combustion chamber of a gas turbine, with an injection device for the introduction of at least one gaseous and/or liquid fuel into the burner, wherein the injection device has at least one body which is arranged in the burner with at least one nozzle for introducing the at least one fuel into the burner, the at least one body being configured as a streamlined body which has a streamlined cross-sectional profile and which extends with a longitudinal direction perpendicularly or at an inclination to a main flow direction prevailing in the burner. The at least one nozzle has its outlet orifice at or in a trailing edge of the streamlined body, and with reference to a central plane of the streamlined body, the trailing edge is provided with at least two lobes extending in opposite transverse directions.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: March 26, 2013
    Assignee: Alstom Technology Ltd.
    Inventors: Khawar Syed, Madhavan Poyyapakkam, Anton Winkler, Andre Theuer
  • Patent number: 8393893
    Abstract: In order to provide a rotary-furnace burner in which the quantity fraction of cost-effective particulate secondary fuels to be used as energy carriers can be increased and the configuration of the burner flame can be influenced, even during the operation of the burner, it is proposed, according to the invention, to arrange an expansion chamber open towards the burner mouth and having a widened cross section, as compared with the tube or individual tubes in the burner in front of the issue of the tube or tubes for blowing out the secondary fuels, and to make the axial length and the volume of the expansion chamber variable, during the operation of the burner, by means of the axial displacement of the secondary-fuel tubes, so that the particulate secondary fuel particles blown out at the burner mouth with a considerably reduced velocity do not fly past the burner flame, but, instead, burn out in the flame.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 12, 2013
    Assignee: KHD Humboldt Wedag GmbH
    Inventors: Ernst Schröder, Alexander Knoch
  • Patent number: 8393892
    Abstract: A burner for production of inorganic spheroidized particles according to the present invention includes a raw material powder supply path that supplies raw material powder by using oxygen or an oxygen-enriched air as a carrier gas; a powder diffusion plate having a plurality of fine holes, which is provided at a downstream end of the raw material powder supply path; a raw material diffusion chamber that is formed in a diffusion pipe provided at a downstream end of the powder diffusion plate; a fuel supply path disposed around the outer circumference of the raw material powder supply path; an oxygen supply path disposed around the outer circumference of the fuel supply path; and a combustion chamber disposed at a downstream side of the raw material diffusion chamber, which has an inside diameter increasing along the downstream direction and communicates with the fuel supply path and the oxygen supply path.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: March 12, 2013
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Yoshiyuki Hagihara, Kazuro Suzuki, Shinichi Miyake, Yasuyuki Yamamoto
  • Publication number: 20130036743
    Abstract: A combustor assembly includes a combustor body having a combustion chamber, and a nozzle support mounted to the combustor body. The nozzle support includes a central opening, and a plurality of openings extending about the central opening. A central flame tolerant nozzle assembly is positioned within the central opening, and a plurality of micro-mixer nozzle assemblies are mounted in respective ones of the plurality of openings about the central flame tolerant nozzle assembly. Each of the central flame tolerant nozzle assembly and the plurality of micro-mixer nozzle assemblies are configured and disposed to deliver an air-fuel mixture into the combustion chamber.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 14, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Abdul Rafey Khan, Krishna Kumar Venkataraman
  • Patent number: 8359972
    Abstract: A cooker for use by troops on deployment comprises a container 10 for cooking fat sitting upon a heating chamber 12. The heating chamber 12 has a back wall 14 formed with an aperture 16 to receive a burner and a front wall 18 formed with an exhaust port 20 communicating with a chimney 22. The heating chamber has side walls extending between its front and back walls 18 and 14. The container has a hinged lid 28 which folds to present a rack 30 for food frying baskets (not shown). The cooker is configured and arranged so that flame from the burner does not contact the container 10 and heat is diffused over the container 10, whereby cooking fat therein is not locally overheated.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: January 29, 2013
    Assignee: Hawkmoor Limited
    Inventors: Michael Frank Palmer, Sean Paul Duffy
  • Patent number: 8337197
    Abstract: A gas burner apparatus for discharging a mixture of fuel gas, air and flue gas into a furnace space of a furnace wherein the mixture is burned and flue gas having a low content of nitrous oxides and carbon monoxide is formed is provided. The burner tile includes at least one gas circulation port extending though the wall of the tile. The interior surface of the wall of the tile includes a Coanda surface. Fuel gas and/or flue gas conducted through the gas circulation port follows the path of the Coanda surface which allows more flue gas to be introduced into the stream. The exterior surface of the wall of the tile also includes a Coanda surface for facilitating the creation of a staged combustion zone. Also provided are improved burner tiles, improved gas tips and methods of burning a mixture of air, fuel gas and flue gas in a furnace space.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: December 25, 2012
    Assignee: John Zink Company, LLC
    Inventors: Roger L. Poe, James Wilkins, Michael G. Claxton
  • Publication number: 20120301835
    Abstract: A burner for diluted combustion includes a fuel nozzle for supplying fuel to a combustion chamber, at least one air nozzle for supplying air to the combustion chamber, and at least one oxygen nozzle for supplying oxygen to the combustion chamber. The air nozzle and oxygen nozzle are spatially separated from each other.
    Type: Application
    Filed: November 29, 2011
    Publication date: November 29, 2012
    Inventors: Martin ADENDORFF, Stefan RUDIG